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Application of a nomological model of selection validity

Bartmann, Tanya Justine (2001-04)

Thesis (MA) -- University of Stellenbosch, 2001.

Thesis

ENGLISH ABSTRACT: The purpose of this study was to determine the applicability of a
nomological model for the assessment of psychological measurement validity
with reference to personnel selection. The model, which can be traced to
Thorndike (1949), Campbell and Fiske (1959), Nunnally (1967, cited in
Duvenage, 1990), Guion (1974, cited in Duvenage, 1990), Binning and
Barrett (1989) and Duvenage (1990), provides the evidential bases for two
empirically founded validation strategies, namely criterion- and constructrelated
validity. Theoretically, the Nomological Model for Psychological
Measurement Validity Assessment proved to be applicable for validating that
a measure is able to predict job performance.
An easily understandable empirical investigation was required to verify the
scientific utility of the model for selection validation. The model was used to
validate the procedure for selecting machine operators in a large food
manufacturer. The investigation illustrated that by utilising Route 1 of the
nomological model, evidence of criterion-related validity, as described by
legal and professional standards, is generated. Furthermore, the study
indicated that by utilising Route 2 of the model, evidential requirements of
construct-related validity as set by legal and professional standards are met.
The results of the study proved that the Nomological Model for Psychological
Measurement Validity Assessment is theoretically, professionally, legally and
practically applicable for the validation of personnel selection procedures.